const a = 5
const b = 'imooc'
const sum = (x,y)=> x+ y
const obj = {
  name: 'es'
}
class People {
  constructor(name){
    this.name = name
  }
  showName(){
    console.log(this.name);
  }
}

export default { 
  a,
  b,
  sum,
  obj,
  People
 }
// const a = 5
// export default  a